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Internet #312620578

Model #R87547B

Store SKU #1005196558

18V SubCompact Brushless Cordless 3 in. Multi-Material Saw (Tool Only) with (3) Cutting Wheels

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  • SubCompact Saw is Optimized for One-Handed Use
  • Brushless motor delivers 19,000 RPMs for multi-material cutting
  • Free Parts and Service for Life with Registration
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Product Overview

RIDGID introduces the 18V SubCompact Lithium-Ion Brushless Cordless 3 in. Multi-Material Saw (Tool Only). This 18V SubCompact Brushless Cordless 3 in. Multi-Material Saw delivers multi-material cutting capability in an ergonomic package, optimized for 1-handed use. The Brushless Motor offers more runtime and longer motor life. All RIDGID 18V SubCompact Brushless tools, including this multi-material saw, are 100% compatible with all RIDGID 18V tools and batteries This tool is backed by the Industry's Only Lifetime Service Agreement, simply register within 90 days of purchase for FREE Parts, FREE Service, For LIFE. The 18V SubCompact Brushless Cordless 3 in. Multi-Material Saw includes a metal cut off wheel, a diamond tile wheel, a carbide abrasive wheel, rotating upper guard, adjustable wire guide, LED light, hex key, and an operator's manual. Battery and charger sold separately.
  • Brushless Motor Technology delivers more runtime, power, and longer motor life
  • Up to 19,000 RPM for multi-material cutting
  • Cuts a variety of materials including aluminum, plaster, drywall, PVC, and tile
  • Forward and reverse switch to change direction of cut for added convenience
  • Variable speed trigger for speed customization
  • Tool free rotating upper guard adjustment for convenience and ease of use when cutting
  • Adjustable wire depth guide included to increase stability and level cuts
  • LED Light for improved visibility in confined spaces and low light situations
  • Compatible with Dremel Saw Blades: SM500, SM540, SM700, SM510C, and SM520C
  • 100% Compatible: Works with all RIDGID 18V Batteries, Tools, and Chargers
  • Lifetime Service Agreement with registration within 90 days of purchase
  • Includes: (1) R87547 18V SubCompact Brushless 3 in. Multi-Material Saw, metal cut off wheel, diamond tile wheel, carbide abrasive wheel, adjustable wire guide, hex key, and operator's manual
  • Battery and charger sold separately
  • RIDGID: Build for a Lifetime

  • Click here for more information on Electronic Recycling Programs
  • California residents

Additional Resources

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Save $20.00 (20%)
Motor TypeBrushedBrushlessBrushlessBrushless
Battery Amp HoursNo BatteryNo BatteryNo Battery2 Ah
Cordless Tool TypeSpecialtyCut-Off ToolSpecialtySpecialty
Power Tool FeaturesNo Additional FeaturesCompact,LED LightCushioned Grip,LED LightCompact,LED Light
Number of Total Batteries Included0001
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Assembled Depth (in.)
11.92 in
Assembled Height (in.)
5.08 in
Assembled Width (in.)
4.45 in
Product Depth (in.)
10.75 in
Product Height (in.)
4.25 in
Product Width (in.)
4.375 in


Batteries Included
Battery Amp Hours
No Battery
Battery Power Type
Lithium Ion
Battery Size
Tool Only
Tool Only
Charger Included
Charger Not Included
Color Family
Cordless Tool Type
Cut-Off Tool
Blade(s),Grinding Wheels
Motor Type
Number of Total Batteries Included
Pack Size
Power Tool Features
Compact,LED Light
Product Weight (lb.)
1.55 lb
Tools Product Type
Power Tool
Variable Speed
Voltage (volts)
18 V

Warranty / Certifications

Certifications and Listings
UL Listed
Manufacturer Warranty
Lifetime Service Agreement

Questions & Answers

Typical questions asked about products:

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Customer Reviews

  • 4.2
    out of 548 reviews
  • 75%recommend this product
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Showing 1-10 of 548 reviews
Excellent for it's intended uses. Great to see things being done right.
Seems quite strong for it's size and intended use. The guard swivels to help get it into tighter spaces. Worked great cutting tile and some steel parts. Ill be modifying it into a tiny chop saw. It seems to have tight enough tolerances for my interest, and plenty of blade beyond the motor, unlike all the others I looked at. And, of course...brushless motor. Excellet! The battery moves a bit in its slot, and the hex key (allen wrench) falls out of it's storage spot. Those are the only 2 things that i see weren't thought out well. The plastic feels like a solid quality, and the ergonomics are nice. I like that it's 18 volts also. Milwaukee's version (made by the same group) is M12, which makes the handle stupid fat, because the battery goes up in it. I have that one also, and they're comparable power and quality wise. The M12 is just bulky, and when you are wanting the smallest tool for the job.....
  • Verified Purchase
  • Recommended
1 found this review helpful
Good Tool for the Right Job
I had a specific need; to make clean cuts through tile already installed on the floor as part of a hardwood flooring repair. The included tile blade did fine. The cut included five 12-inch tiles. Not sure home many more cuts the blade will make but the tool performed fine. Cuts were made dry creating a lot of dust. I kept a shop vac running near the cut which helped.
  • Verified Purchase
  • Recommended
2 found this review helpful
Battery NOT on the way!
I first thought the design was flawed as the battery was getting in the way. BUT after reading someone else's review, I found out the the entire guard can rotate in 4 different angles up to about 45° to make up for this! Instantly went from a 2* to 5* product! I also hope this helps others because this is a great tool!
    13 found this review helpful
    Great tool. Now includes 7/16 and 3/8 arbor washer
    Love this tool. Especially that ridgid listened and added a 3/8 and 7/16 arbor washer. It cuts a ton better than my m12 cut off tool. Does not cut off or struggle going through materia.
      • Recommended
      This unit is awesome!!
      I bought this unit and after I did, I started reading the reviews. Me being the type of person I am, I started messing with the head of the unit and found if you apply some turning pressure to it, it will change the angle in witch it cuts. So for everyone giving a 1 star due to the battery being in the way, this unit has the capabilities of clicking into 4 different angles. I hope this review helps anyone with this "issue".
        • Recommended
        The tool has potential
        Reviewing the saw before deciding to purchasing I found no legible PT# for the 3" discs. That seems to be a draw back. Hope the picture help to find a vendor that can support the consumables..
          • Recommended
          A tool you didn't know you needed
          I purchased this tool with a single project in mind. We were planning to install Vinyl plank flooring in our “Primary Bedroom” but naturally I wanted to try it out first. After buying a 3’’ cutting disc assortment, I tested this on door trim, #5 Rebar (⅝’’ Diameter), ½’’ PVC pipe, 7/16’’ OSB plywood and ⅛’’ Masonite Hardboard using a Ridgid 6 aH Octane battery with great success! The standard door trim was too thick to cut all the through, but it was still a clean cut. I was able to cut through the rebar with little wear and tear to the cutting disc and no stalling from the Sub-Compact, brushless motor. However, I did need to bend the rebar at the cut in order to finish cutting all the way through. Once I bent it down, I was easily able to cut the remaining ⅛’’. Cutting the rebar still made a good amount of sparks, but they are forced away from your body. The wood and plastic blade I used to cut through the OSB plywood had no issues, slow downs and did so with ease. The dust was kicked forward of the tool which kept the cutting surface free and clean of the debris. Overall, I would recommend this tool for anyone who already owns Ridgid Tools and needs to make minor cuts. Are you going to build an entire house with this tool…. No. But will you be able to complete the punch out task, do a quick remodel, avoid making an excessive trip to the saw cut station… Absolutely! Because this tool is cordless, you aren’t tied down by a cord. You can easily fit it into your tool box without adding to much bulk or weight. This will make quick jobs even faster with just as accurate cuts! Because Ridgid offers 100% compatibility on all their batteries, you do not have to worry about buying a special battery if you already own one. I will have to hand it to Ridgid on this tool, this is a tool that I didn’t know I needed until I used it.
            • Recommended
            13 found this review helpful
            This little saw really surprised me and in a good way. Even though it’s small and I did have doub...
            This little saw really surprised me and in a good way. Even though it’s small and I did have doubts at first it’s had plenty of power and actually came in much more handier than I originally thought. On a flooring job I used it to cut straight lines on some tile to transition floorings and it worked out great. I did a dry cut and it went smooth and did the job. It also works really good for those flimsy plywood’s and other 1/4 inch sheets. I was able to just cut on the ground with no problems. On metal i just cut some thin metal paneling which went good as well. Obviously this saw won’t replace a true circular saw but I definitely found uses for it and more to come. It’s pretty lightweight and made well. It’s very easy to use and the blades it came with are pretty good quality. Definitely suggest use the octane batteries and run time will go far beyond expectations. I like the shoe of it or base plate because it really does help to cut straight lines. I do home remodeling so this compact saw is right up my alley. It has plenty of power but I definitely don’t say it’s like a circular saw. Definitely would recommend it. One giant thing I really liked about this is I used it to cut acrylic sheets with ease.
            • Recommended
            9 found this review helpful
            A compact saw with big ambitions it easily cuts a wide range of materials with the included cutti...
            A compact saw with big ambitions it easily cuts a wide range of materials with the included cutting wheels – see video. It makes a mess too so safety gear is essential. The tool is nose heavy which helps in keeping the cutting wheel in contact with the workpiece. It is compatible with all Ridgid 18 volt batteries and does drain the batteries quite quickly. Clean cuts are easily achieved on flat materials but I need a bit more practice on cylindrical materials for sure. It made short work of neatly cutting 1/8 inch by two inch flat bar steel and glazed tile. A worthy inclusion to any toolbox.
            • Recommended
            7 found this review helpful
            First, I am a huge Ridgid fan, any company who believes in their products so much they put a life...
            First, I am a huge Ridgid fan, any company who believes in their products so much they put a life time warranty on them knows their tools are good! This addition to my collection is a great little tool, cut cleanly through PVC, drywall and just one small chip on the ceramic tile I tried it out on. It is light weight, easy to handle, not very loud, compact in size and plenty of power to cut the above items. It also cut through the metal item I tried it out on, the cut was rough and the saw bogged down pretty bad even though I was taking it very slow. The metal in the picture is aluminum. Just to do a quick rough cut on something like that it will be fine. Just not a pretty edge. It comes with on tool storage of the 4mm Allen wrench needed to do all the adjustments and to change the wheel. Wheel changing is very easy and quick, There is a small LED light to help light up your work area. Maintenance on this tools seems like it will be real easy. The topper on all of this, it will not take up a lot of room in your shop or tool box.
            • Recommended
            6 found this review helpful
            Showing 1-10 of 548 reviews